Leather-spraying machine



May 20, 1930. s. GooDwlQ ET AL 1,759,349

LEATHER SPRAYING MACHINE Filed June 6, 1928 2 Sheets-Sheet l -& ,bzvenl'ory La/ana/ 5. 60009021 I I a m f d/l. 44/ baud l MW M 1776mm y May 20, 1930. 1.. s. GOODWIN T' 1,759,349

' LEATHER SPRAYING MACHINE Filed June 6, 1928' 2 Sheets-Sheet 2 le/a/m 5. G odW/h IVi/fraa/ 14. Mahmud Patented May 20, '1930 LELAND S. GOODWIN AND WILFRED A.

MICI-IAUD, F SALEM, MASSACHUSETTS LEATHER-SPRAYING MACHINE Application filed June 6,

The present invention relates to spraying machines, and has for its principal object to provide an apparatus of. this character, adapted particularly for use in connection with the spraying of leather, hides, skins,

and similar flat material.

A further object of the invention is to provide a series of spray nozzles disposed transversely of the work as the same is fed through the machine and connecting each of said nozzles with the blow in reservoir and an air hose arranged to eject the fiuid under pressure from the nozzle upon the work.

A still further object isto provide a spray nozzle of novel construction in which the fluid is ejected therefrom angularly from the opposite side of the nozzle, in order that the fluid will spread over a considerable area and thus thoroughly cover the work.

A still further object is to provide an apparatus of this character of a simple and practical construction which is efficient and reliable in performance, relatively inexpen- M sive to manufacture and maintain in operation, and otherwise we'll'adapted to the purposes for which the same is intended.

' Other objects and advantages reside in the special construction and combination of the various elements comprising the invention reference being had to the accompanying drawings, forming a part hereof, wherein:

*Figure 1 is a front elevational view with the housing of the apparatus removed, and with certain of thespray nozzles and supply pipes shown in section. I

Figure 2 is an end elevational view.

I Figure 3 is a similar view, showing the device encased in the'housing provided therefor.

Figure 4 is a vertical sectional 'view through one of the spray nozzles.

Figure 5 is a transverse sectional view therethrough, taken substantially along the line 55 of Figure 4. t

Figure 6 is a bottom spray nozzles, and

Figure 7 is a view in elevation of the scraper for the feed roller.

invention comprises a supporting frame com- Referring now to the drawings in detail,the

1928. Serial No. 283,387.

posed of a pair of spaced apart vertically ex- I tending frame members 5 having arms 6 extending from each side thereof and supported on legs 7 t Adjacent the lower portion of the frame and at each side thereof is arranged a pair of bearing brackets 8, within which a pair of spaced parallel shafts 9 are journaled for rotation, each of said shafts providing a mounting for a drum 10. The drums 10 are preferablyof a reticulated construction having plates 11 arranged at each end thereof. Each of the drums 10 are connected for operation as a unit by a belt 12 of a width substantially equal to the length of the drum. Each of the shafts 9 extend outwardly from one side of the frame as shown at 13, the end of one of the shafts having a gear wheel 14 keyed thereon, and the ends of each of said shafts having sprocket wheels 15 likewisesecured thereto. The sprocket wheels 15 are operatively connected with the chains 16, forming a positive drive connection for the drum. The end ofone of the shafts also provides a mounting for a pair of drive pulley wheels I 17. One of the pulley wheels is keyed to said shaft, with the other of saidwheels freely mounted thereon, whereby to provide a means for the shifting of the drive beltfor the purpose of throwing the drums into or out'of operative engagement. A gear wheel 18 is operatively engaged with-the gear 14, said gear wheel beingkeyed on a shaft 19 disposed in spaced parallel relation immediately above one of the drums 10 and journaled for rota-, tion in bearing brackets 20' mounted at opposite sides of the frame.

Upon the shaft 19 is mounted a solid'pressure roller 21 having its periphery disposed in close proximity with the-surface of theibelt j 12. Disposed above the belt 12 and-rearwardly of the roller 21 is a liquid feed pipe 22,

' extending transversely of the'belt and supportedfat each end'at the upper portion of the plan view of one of the i Y outwardly from the frame is provided with frame. Each end of the pipe 22, extending an elbow 23, providing a connection with a drainpipe 24, with a valve'25 interposed therein. Arranged about the pipe 22 is a jacket 26, having its walls inspacedrrelation V brackets/30., A valve 31 is interposed in said feed pipe controlling communication therethrou'gh. Extending downwardly from the pipe..22, at spaced intervals throughout its 7 length is a plurality of discharge pipes 32,

having a nozzle 33, threaded in the lower end thereof. A sleeve 34 is disposed about each of the discharge pipes 32 with their respective walls in" spaced relation, the upper end of ,the sleeve having communication with the interior of the jacket 26.

i The lower end of the sleeve is closed with an annular plug 35 fitted between the walls of the discharge pipe and the sleeves and provided with a series of apertures 36 extendingthrough said plug. of the sleeve'34 is externally threaded and adapted to threadably receive a cap 36 depending therefrom,the bottom portion of the seat is possiblethrough the register attachment of the cap on the sleeve. The cap is cap having a seat 37 formed therein adapted for providing a snug fit for the tapered lower end38 of the nozzle 33, Suitable adjustment for the end of the nozzle upon the secured in threadedly adjusted position by aset screw 39, extending through the wall of the cap and engaging the sleeve. A dis- .charge opening 40 isformed at the center of'the seat 37 providing a direct passage for the; fluid from the end of the nozzle to the v cap andby properlyadjusting the tapered end of the nozzle'with respect tothe seat, a suflicient amount rof air will be discharged through the opening 40, together with the ,liquidwhereby to form a spray of the same.

As clearly illustrated in Figure 4 of the gidrawing, the bottomportion of the GELPGX- ftends upwardly and inwardly in order to 1 form the seat 37 andin'saidinclined portion apertures ll thus constitute an air discharge is formed a pair offaperture's 41 arranged at diametrically oppositesid'es from the nozzle and adjacent the sides of the frame. The

;port arranged to direct the air .underpres- .sure transversely of the flow of the liquid -rear-sidesthereof and disposed substantially a at a horizontal plane withthe upper edges of'the drum. Immediately beneath the said from the discharge nozzle and in-addition to further breaking up the liquid to formthe spray also serves to spread the spray thus formed at each side of the'cap for increasing the area subjected-o to the spraying action. The drums. and said'spray nozzles together with their'feedpipeare enclosed in the hous The lower end 7 the strips of leather, hides or other material may be placed for feeding through the apparatus between one of the drums andt e pressure roller 21. The belt 12 serves 'to convey the work through the apparatus beneath the spray nozzle for treatment thereby after which the'same is fed from the housingat the rear thereof. Arranged immediately beneath the forward drum 101is a scraperl5 engaging the belt l2 for cleaning the same before the belt comes into contact with the work." 7

The scraper 45 is attached at each end by adjusting screws 46m brackets 47 secured to the frame 5.' It will be apparent from the foregoing that a suitable liquid may be placed in thetank 29, such as for instance, a'disinfectant for discharge from the nozzles 33 and through the action of the air discharged under pressure through the cap 36 will be sprayed over the entire surface of the work .passingthrough the machine;

tible of various changes and modifications,

.without departing from the spirit or scope of the invention or sacrificing any of its advantages, and we accordingly claim all such forms of thedevice to which we are entitled. 1 Having thus described ourinvention, what we claim as new is:

spray pipe, a acket for saidspraypipe, a V

.with the'tank, a pipe connecting the jacket with a supply of air under pressure, a pluralityof sleeves extending laterally from said jacket, discharge pipes communicating with the spray pipe and concentrically dis- '..posed in said sleeves, spray'heads threaded to the ends of saidsleeves and said discharge I pipes having discharge orifices in each thereof disposed substantially in a common plane, the spray head for each of said sleeves having centrally and eccentrically disposed orifices, said central orifice having inwardly flared wallsand said spray head for the corresponding discharge pipe having a tapered end complemcntal with the wall of said central ori-' lice and an apertured spacing ring carried at 1 the end of each of said discharge pipes for centering the tapered spray head in the corresponding central orifice." V

In testimony whereof we affix our signa- LELAND- S; GOODWIN. I

j WILFRED A. -MICHAUD.

ings 42,thavingopenings at the front and V openings is supported a table 44L, upon which V 95 r i A spray apparatus comprising a "liquid 

